void DynamicObject::InitSlots(DynamicObject * instance, ScriptContext * scriptContext)
{
Recycler * recycler = scriptContext->GetRecycler();
int slotCapacity = GetTypeHandler()->GetSlotCapacity();
int inlineSlotCapacity = GetTypeHandler()->GetInlineSlotCapacity();
if (slotCapacity > inlineSlotCapacity)
{
instance->auxSlots = RecyclerNewArrayZ(recycler, Var, slotCapacity - inlineSlotCapacity);
}
}
WebAssemblyTable *
WebAssemblyTable::Create(uint32 initial, uint32 maximum, ScriptContext * scriptContext)
{
if (initial > maximum || initial > Wasm::Limits::GetMaxTableSize() || maximum > Wasm::Limits::GetMaxTableSize())
{
JavascriptError::ThrowRangeError(scriptContext, JSERR_ArgumentOutOfRange);
}
Field(Var) * values = nullptr;
if (initial > 0)
{
values = RecyclerNewArrayZ(scriptContext->GetRecycler(), Field(Var), initial);
}
return RecyclerNew(scriptContext->GetRecycler(), WebAssemblyTable, values, initial, initial, maximum, scriptContext->GetLibrary()->GetWebAssemblyTableType());
}
Var
WebAssemblyTable::EntryGrow(RecyclableObject* function, CallInfo callInfo, ...)
{
PROBE_STACK(function->GetScriptContext(), Js::Constants::MinStackDefault);
ARGUMENTS(args, callInfo);
ScriptContext* scriptContext = function->GetScriptContext();
Assert(!(callInfo.Flags & CallFlags_New));
if (args.Info.Count == 0 || !WebAssemblyTable::Is(args[0]))
{
JavascriptError::ThrowTypeError(scriptContext, WASMERR_NeedTableObject);
}
WebAssemblyTable * table = WebAssemblyTable::FromVar(args[0]);
uint32 oldLength = table->m_currentLength;
Var deltaVar = args.Info.Count >= 2 ? args[1] : scriptContext->GetLibrary()->GetUndefined();
uint32 delta = WebAssembly::ToNonWrappingUint32(deltaVar, scriptContext);
if (delta > 0)
{
uint32 newLength = 0;
if (UInt32Math::Add(table->m_currentLength, delta, &newLength) || newLength > table->m_maxLength)
{
JavascriptError::ThrowRangeError(scriptContext, JSERR_ArgumentOutOfRange);
}
Field(Var) * newValues = RecyclerNewArrayZ(scriptContext->GetRecycler(), Field(Var), newLength);
CopyArray(newValues, newLength, table->m_values, table->m_currentLength);
table->m_values = newValues;
table->m_currentLength = newLength;
}
return JavascriptNumber::ToVar(oldLength, scriptContext);
}